Moving ball applet – Java

This is a Java class that uses some trigonometry and vector mathematics in its implementation.  An object of type MovingBall holds data about a “ball” that has a color, radius, position, speed, and direction. The ball is restricted to moving around inside a rectangle in the xy-plane. The ball can draw itself in a graphics context and will move when it is told to move.

Client Server in Java

Set up a Server that will receive packets from a client and send packets to a client. Also set up a Client that will send packets to a server and receive packets from a server. [sourcecode...

PostFix expression evaluator – Java

This program evaluates postfix expressions entered by the user. The expressions can use non-negative real nubmers and the operators +, -, *, /, and ^ (where ^ represents exponentiation). Numbers must begin with a digit. That is, you have to say 0.7 rather than just...

JRadioButton Demonstration – Java

A little applet that demonstrates JRadionButton with a group of radio buttons that control the background color of a label. [code=’java’] /******************************************************* * MYCPLUS Sample Code – https://www.mycplus.com * * * *...